A laundry quantity detection method and device, a laundry care machine and a storage medium

Abstract

The embodiment of the application discloses a kind of clothes quantity detection method, device, clothes care machine and storage medium, it is related to ultrasonic detection technical field.The specific, by determining the number of specified type echo signal (the signal after the ultrasonic wave signal sent by closed ultrasonic transceiver is reflected by barrier) that each closed ultrasonic transceiver in clothes care machine obtains in respective sampling duration;According to the number of specified type echo signal determined, determine target value, the target value is used to represent the sum of the number of specified type echo signal obtained by each closed ultrasonic transceiver;According to target value, determine the number of clothes in the box of clothes care machine.The embodiment of the application utilizes the characteristics that the number of clothes placed in the box of clothes care machine and the number of specified type echo signal exist corresponding relationship, carries out clothes quantity detection, avoids signal interference problem, improves clothes quantity detection precision.

Description

Technical Field

[0001] This application relates to the field of ultrasonic testing technology, and in particular to a method, apparatus, garment care machine, and storage medium for detecting the quantity of clothing. Background Technology

[0002] Existing garment care machines can determine the number of garments inside the machine and adjust the operating time accordingly to effectively control power consumption and improve user experience.

[0003] Currently, the method for detecting the number of clothes in a garment care machine is as follows: the transmitting end of a closed ultrasonic detection device sends an ultrasonic signal, and the echo time of the echo signal received by the receiving end of the closed ultrasonic detection device is determined accordingly. Based on the echo time, it is determined whether each hanger has clothes, thereby counting the number of clothes inside the machine.

[0004] However, the ultrasonic signals emitted by the transmitter of a closed ultrasonic testing device can easily be transmitted to the receiver through the probe housing structure and circuitry. Furthermore, the ultrasonic signals may be absorbed by obstacles in the other clothing detection areas during propagation, interfering with the reception of the echo signals and thus affecting the accuracy of clothing quantity detection, leading to misjudgments. Therefore, the above method has low accuracy in determining the number of clothing items. Summary of the Invention

[0005] This application provides a method, apparatus, garment care machine, and storage medium for detecting the number of garments, which solves the problem of low accuracy in detecting the number of garments in existing garment care machines.

[0006] In a first aspect, embodiments of this application provide a method for detecting the number of garments, applied to a garment care machine comprising N (N is a positive integer greater than or equal to 2) enclosed ultrasonic transceivers, wherein the enclosed ultrasonic transceivers are correspondingly arranged with garment detection areas within the housing of the garment care machine. Specifically, the method for detecting the number of garments includes: determining the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver within its respective sampling duration; determining a target value based on the determined number of echo signals of the specified type, the target value being used to characterize the sum of the number of echo signals of the specified type acquired by each enclosed ultrasonic transceiver; and then determining the number of garments within the housing of the garment care machine based on the target value. Here, the echo signal is the signal after the ultrasonic signal transmitted by the enclosed ultrasonic transceiver is reflected by an obstacle.

[0007] In practical applications, the number of echo signals of a specified type corresponds to the number of garments. Based on this, the garment quantity detection method provided in this application detects the number of echo signals of a specified type throughout the garment care machine by counting the number of echo signals of the entire machine. This effectively avoids the influence of various areas within the garment care machine on the echo signals, avoids signal interference problems caused by detecting garments through echo time, and thus improves the accuracy of garment quantity detection.

[0008] Furthermore, since the detection accuracy of the number of garments has been effectively improved, the running time of the garment care machine can be adaptively adjusted according to the accurately detected number of garments during subsequent garment care. This ensures that the running time of the garment care machine is accurately adjusted, avoids excessive energy waste caused by excessive running time, optimizes the energy efficiency management of the garment care machine, and improves the user experience.

[0009] In one possible design approach, the aforementioned "determining the number of clothes inside the garment care machine based on the target value" includes:

[0010] If the target value is greater than or equal to the first threshold, the number of clothes is determined to be zero; if the target value is greater than the second threshold and less than the first threshold (the second threshold is less than the first threshold), the number of clothes is determined to be one; if the target value is less than or equal to the third threshold (the third threshold is less than the second threshold), the number of clothes is determined to be N; if the target value is less than the second threshold and greater than the third threshold, the number of clothes is determined to be greater than 1 and less than N.

[0011] In another possible design, after determining the number of garments to be one, the garment quantity detection method further includes: identifying a first enclosed ultrasonic transceiver, which is the enclosed ultrasonic transceiver that receives the fewest echo signals of a specified type among at least two enclosed ultrasonic transceivers; then, determining that the garments inside the garment care machine are located in the garment detection area corresponding to the first enclosed ultrasonic transceiver, that is, determining that there are garments hanging on the hanger corresponding to the first enclosed ultrasonic transceiver.

[0012] In another possible design, if N equals three, the above "determine the number of clothes is greater than 1 and less than N" includes: determining the number of clothes to be two.

[0013] In another possible design, if the number of garments is determined to be two, the garment quantity detection method further includes: identifying a second enclosed ultrasonic transceiver, which is the enclosed ultrasonic transceiver that receives the most echo signals of a specified type among the three enclosed ultrasonic transceivers; subsequently, determining that there are no garments in the garment detection area corresponding to the second enclosed ultrasonic transceiver inside the garment care machine, that is, determining that there are no garments on the hanger corresponding to the second enclosed ultrasonic transceiver.

[0014] In another possible design approach, the aforementioned "determining the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver within its respective sampling duration" includes: determining the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver sequentially based on the ultrasonic signal transmission timing, wherein the ultrasonic signal transmission timing is used to control each enclosed ultrasonic transceiver to transmit ultrasonic signals in the corresponding ultrasonic signal transmission timing.

[0015] In another possible design approach, the aforementioned "determining the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver within its respective sampling duration" includes: determining a first moment, and from the first moment, sampling the received echo signals at a preset frequency within the sampling duration; then, determining the number of echo signals of a specified type among the sampled echo signals. Here, the first moment is the moment when the enclosed ultrasonic transceiver receives the first echo signal of the specified type.

[0016] In another possible design, the echo signal of the specified type is an echo signal in a low-level state.

[0017] Of course, in practical applications, the echo signal of the specified type can also be other types of signals, and this application embodiment does not specifically limit this.

[0018] In a second aspect, embodiments of this application provide a clothing quantity detection device applied to a clothing care machine comprising N (N is a positive integer greater than or equal to 2) enclosed ultrasonic transceivers, wherein the enclosed ultrasonic transceivers are correspondingly arranged with respect to the clothing detection area within the housing of the clothing care machine. Specifically, the clothing quantity detection device includes an acquisition module, a statistics module, and a determination module. The acquisition module is used to determine the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver within its respective sampling duration. The statistics module is used to determine a target value based on the determined number of echo signals of the specified type, the target value representing the sum of the number of echo signals of the specified type acquired by each enclosed ultrasonic transceiver. The determination module is used to determine the number of clothes within the housing of the clothing care machine based on the target value. Here, the echo signal is the signal after the ultrasonic signal transmitted by the enclosed ultrasonic transceiver is reflected by an obstacle.

[0019] In one possible design approach, the aforementioned determining module is specifically used for:

[0020] If the target value is greater than or equal to the first threshold, the number of clothes is determined to be zero.

[0021] If the target value is greater than the second threshold and less than the first threshold (the second threshold is less than the first threshold), the number of clothes is determined to be one. After determining the number of clothes to be one, a first enclosed ultrasonic transceiver is identified. This first enclosed ultrasonic transceiver is the one that receives the fewest echo signals of the specified type among at least two enclosed ultrasonic transceivers. Then, it is determined that the clothes inside the garment care machine are located in the garment detection area corresponding to the first enclosed ultrasonic transceiver, that is, it is determined that there are clothes hanging on the hanger corresponding to the first enclosed ultrasonic transceiver. If the target value is less than or equal to the third threshold (the third threshold is less than the second threshold), the number of clothes is determined to be N. If the target value is less than the second threshold and greater than the third threshold, the number of clothes is determined to be greater than 1 and less than N.

[0022] In another possible design, when N equals three, the target value is less than the second threshold and greater than the third threshold. The aforementioned determining module is specifically used to: after determining that the number of clothes is two, determine the second enclosed ultrasonic transceiver, which is the enclosed ultrasonic transceiver that receives the most echo signals of the specified type among the three enclosed ultrasonic transceivers; and determine that there are no clothes in the clothing detection area corresponding to the second enclosed ultrasonic transceiver inside the clothing care machine.

[0023] In another possible design, the acquisition module is specifically used to: determine the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver based on the ultrasonic signal transmission timing, wherein the ultrasonic signal transmission timing is used to control each enclosed ultrasonic transceiver to transmit ultrasonic signals in the corresponding ultrasonic signal transmission timing.

[0024] In another possible design, the acquisition module is specifically used to: determine a first moment, which is the moment when the enclosed ultrasonic transceiver receives the first echo signal of a specified type; and from the first moment, sample the received echo signals at a preset frequency within a sampling duration; then determine the number of echo signals of the specified type among the sampled echo signals. Here, the first moment is the moment when the enclosed ultrasonic transceiver receives the first echo signal of the specified type.

[0025] In another possible design, the echo signal of the specified type is an echo signal in a low-level state.

[0026] In a third aspect, embodiments of this application provide a garment care machine, comprising: N enclosed ultrasonic transceivers, a memory, and a processor, where N is a positive integer greater than or equal to 2, and the enclosed ultrasonic transceivers are connected to the processor. The memory stores computer execution instructions. The processor invokes the computer execution instructions and controls the operation of the enclosed ultrasonic transceivers, such that when the garment care machine is running, it executes the computer execution instructions to implement the garment quantity detection method as described in the first aspect.

[0027] In a fourth aspect, embodiments of this application provide a computer-readable storage medium including computer instructions that, when executed on a garment care machine, cause the garment care machine to perform the garment quantity detection method as described in the first aspect.

[0028] Fifthly, embodiments of this application provide a computer program product including computer instructions that, when executed on a garment care machine, cause the garment care machine to perform the garment quantity detection method as described in the first aspect and any possible design thereof.

[0029] For a detailed description of the second to fifth aspects and their various implementations in the embodiments of this application, please refer to the detailed description in the first aspect and its various implementations; and for a detailed description of the beneficial effects of the second to fifth aspects and their various implementations, please refer to the beneficial effect analysis in the first aspect and its various implementations, which will not be repeated here.

[0030] These or other aspects of the embodiments of this application will become more apparent in the following description. Attached Figure Description

[0031] Figure 1 This is a flowchart of a clothing quantity detection method provided in an embodiment of this application;

[0032] Figure 2 This is a schematic diagram showing the connection between the clothing quantity detection device and the ultrasonic plate in an embodiment of this application;

[0033] Figure 3 This is a flowchart of a clothing quantity detection method provided in an embodiment of this application;

[0034] Figure 4 This is a schematic diagram of an echo signal in an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of an echo signal in an embodiment of this application;

[0036] Figure 6 This is a flowchart illustrating the low-level count statistics in an embodiment of this application;

[0037] Figure 7 This is a flowchart of the clothing quantity detection process of the clothing care machine in this application embodiment;

[0038] Figure 8 This is a flowchart of a clothing position detection method according to an embodiment of this application;

[0039] Figure 9 This is another flowchart of clothing position detection in the embodiments of this application.

[0040] Figure 10 This is a flowchart illustrating the sampling process for a specified type of echo signal in an embodiment of this application.

[0041] Figure 11 This is a schematic diagram of the structure of a clothing quantity detection device provided in an embodiment of this application;

[0042] Figure 12 This is a schematic diagram of the structural connection of a garment care machine provided in an embodiment of this application. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this application clearer, specific embodiments of this application will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely for explaining this application and not for limiting it. It should also be noted that, for ease of description, only the parts relevant to this application are shown in the drawings, not all of them. Before discussing exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe operations (or steps) as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but may also have additional steps not included in the drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0044] It should be noted that in this application, relational terms such as "first" and "second" are used only to distinguish one entity, operation, or object from another entity, operation, or object, and do not necessarily require or imply any actual relationship or order between these entities, operations, or objects. For example, "first" and "second" in "first touch operation" and "second touch operation" are used to distinguish two interactive operations that touch the screen cover at different times. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0045] Compared to traditional garment care machines, which typically use a closed ultrasonic detection device to send ultrasonic signals and determine the presence of garments in the corresponding area by measuring the echo duration of the received signals, the number of garments is determined based on the detection results for each area. However, because the ultrasonic signals from the closed ultrasonic detection device can easily penetrate the probe housing and circuitry to reach the receiver, and can also be absorbed by obstacles in other garment detection areas during propagation, this can interfere with the reception of the echo signals, affecting the accuracy of the garment detection results and potentially leading to misjudgments of the garment quantity.

[0046] Based on this, an embodiment of this application provides a method for detecting the quantity of clothing, in order to solve the problem of misjudgment in the quantity detection of clothing in existing clothing care machines. The method for detecting the quantity of clothing provided in this application aims to accurately detect the quantity of clothing by statistically analyzing the total number of echo signals of a specified type received by each enclosed ultrasonic transceiver, utilizing the characteristic that the quantity of clothing placed inside the clothing care machine corresponds to the quantity of echo signals of a specified type.

[0047] Ultrasonic signals are a type of sound wave, inaudible to the human ear with a frequency higher than 20kHz. They are generated by the vibration of matter and can only propagate through a medium. When an ultrasonic signal encounters an obstacle during propagation, it is reflected back to the enclosed ultrasonic transceiver; this signal is the echo signal. This embodiment of the application receives this echo signal and utilizes the characteristic that the number of clothes placed inside the garment care machine corresponds to the number of echo signals of a specified type. By counting the number of echo signals of a specified type in each echo signal, the quantity of clothes inside the garment care machine is accurately detected.

[0048] The clothing quantity detection method provided in this application is mainly applied to clothing care machines. Figure 1 A schematic diagram of the garment care machine is shown. Figure 1 As shown, the inner chamber of the garment care machine contains an ultrasonic plate 11 and a clothes hanger 12. The clothes hanger 12 is used to hang clothes. When the garment care machine is running, the spraying, drying, and other equipment installed in the inner chamber performs garment care operations to realize the garment care function of the garment care machine.

[0049] The ultrasonic plate 11 is equipped with at least two enclosed ultrasonic transceivers. In practical applications, the ultrasonic plate 11 can be installed on the back panel inside the sealed enclosure (i.e., on the back panel opposite the door panel); it can also be installed on the top of the sealed enclosure, the bottom of the sealed enclosure, or on the door panel. The specific installation position is not fixed in this embodiment. Figure 1 The position of the ultrasonic plate 11 shown is exemplified by its location on the back panel inside the sealed enclosure.

[0050] Each enclosed ultrasonic transceiver may include a transmitting probe 111 and a receiving probe 112, the positions of which correspond to the positions of the clothes hanger 12, so as to transmit ultrasonic signals through the area of ​​the enclosed ultrasonic transceiver corresponding to the clothes hanger 12, and then detect the number of clothes through the echo signals.

[0051] For example, the enclosed ultrasonic transceiver is installed on the back panel inside the sealed enclosure, at a height of two centimeters below the clothes hanger. This allows for echo signal detection for garments of different lengths, optimizing the garment quantity detection effect.

[0052] In practical applications, based on the actual hardware configuration of the garment care machine, a set of enclosed ultrasonic transceivers can be set up for each garment hanger 12 to enable the enclosed ultrasonic transceivers to send ultrasonic signals and receive echo signals in the garment detection area, thereby improving the accuracy of determining the number of garments.

[0053] Of course, depending on the different scenarios of clothing quantity detection, the setting position of the enclosed ultrasonic transceiver can be adjusted to accurately send and receive signals for the corresponding clothing detection area.

[0054] Each enclosed ultrasonic transceiver in this embodiment is connected to the processor in the garment care machine. Figure 2 The connection method between each enclosed ultrasonic transceiver and the processor in the garment care machine is shown.

[0055] Reference Figure 2Taking a garment care machine comprising three enclosed ultrasonic transceivers (e.g., enclosed ultrasonic transceiver 1, enclosed ultrasonic transceiver 2, and enclosed ultrasonic transceiver 3) as an example: The processor connects to the transmitting probe Tx1 of enclosed ultrasonic transceiver 1 via port Tx1-io, and to the receiving probe Rx1 of enclosed ultrasonic transceiver 1 via port Rx1-io. The processor connects to the transmitting probe Tx2 of enclosed ultrasonic transceiver 2 via port Tx2-io, and to the receiving probe Rx2 of enclosed ultrasonic transceiver 2 via port Rx2-io. The processor connects to the transmitting probe Tx3 of enclosed ultrasonic transceiver 3 via port Tx3-io, and to the receiving probe Rx3 of enclosed ultrasonic transceiver 3 via port Rx1-io.

[0056] When detecting the number of garments, the garment quantity detection device sends a pulse signal to the transmitting probe of the corresponding enclosed ultrasonic transceiver, so that the ultrasonic transmitting probe sends an ultrasonic signal to its corresponding garment detection area. Then, the receiving probe of the ultrasonic transceiver receives the echo signal of the ultrasonic signal, and the number of garments in the current garment care machine can be determined based on the echo signal.

[0057] The following is in conjunction with the appendix Figure 1 and Figure 2 The method for detecting the quantity of clothing provided in the embodiments of this application is described.

[0058] Figure 3 A flowchart of a clothing quantity detection method according to Embodiment 1 of this application is provided. The clothing quantity detection method provided in this embodiment can be executed by a clothing quantity detection device. This clothing quantity detection device can be implemented by software and / or hardware. The clothing quantity detection device can be the aforementioned clothing care machine, the processor in the aforementioned clothing care machine, or the control module in the aforementioned clothing care machine used for detecting the quantity of clothing.

[0059] The following description uses a clothing quantity detection device as the main component for performing the clothing quantity detection method. (Refer to...) Figure 1 ,like Figure 3 As shown, the method for detecting the quantity of clothing specifically includes:

[0060] S110. Determine the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver within its respective sampling time.

[0061] The echo signal is the ultrasonic signal transmitted by a closed ultrasonic transceiver that is reflected by an obstacle.

[0062] Optionally, when detecting the number of garments, the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver is determined sequentially based on the ultrasonic signal transmission timing. The ultrasonic signal transmission timing is used to control each enclosed ultrasonic transceiver to transmit ultrasonic signals according to the corresponding ultrasonic signal transmission timing.

[0063] The garment quantity detection device controls the enclosed ultrasonic transceivers one by one to send and receive ultrasonic signals based on a set timing sequence, according to the number of enclosed ultrasonic transceivers installed inside the garment care machine.

[0064] Because enclosed ultrasonic transceivers have a large signal transmission angle and weak signal directivity, when multiple enclosed ultrasonic transceivers are used in a garment care machine to detect the number of garments in multiple detection areas, interference between the signals from different detection areas can occur if the enclosed ultrasonic transceivers perform ultrasonic signal detection in parallel. This interference would result in a large amount of interference in the received echo signal, hindering the garment quantity detection of the garment care machine. Therefore, during garment quantity detection, the ultrasonic signal transmission sequence of each enclosed ultrasonic transceiver is pre-set, so that each enclosed ultrasonic transceiver sends ultrasonic signals sequentially at different times.

[0065] Correspondingly, each enclosed ultrasonic transceiver will receive ultrasonic signals in sequence at different times.

[0066] To further reduce signal interference, the next ultrasonic transceiver can be controlled to only begin transmitting an ultrasonic signal after the previous one has finished receiving one. This avoids signal interference, further improves the accuracy of clothing quantity detection, and optimizes the detection effect.

[0067] Optionally, before acquiring the echo signal received by the enclosed ultrasonic transceiver within a preset time, the clothing quantity detection device needs to send a pulse signal with a set quantity, set frequency, and set duty cycle to the enclosed ultrasonic transceiver so that the enclosed ultrasonic transceiver sends the corresponding ultrasonic signal.

[0068] In practical applications, the number, frequency, and duty cycle of pulse signals can be pre-set according to the actual needs of clothing quantity detection.

[0069] For example, when detecting the number of garments, this application sends eight 40kHz pulse signals with a 50% duty cycle to the transmitting probe through the garment quantity detection device, thereby generating an ultrasonic signal.

[0070] When the enclosed ultrasonic transceiver transmits an ultrasonic signal to the corresponding clothing detection area, a pulse signal is sent to the transmitting probe of the enclosed ultrasonic transceiver located in that area, by selecting the clothing detection area to be detected. This causes the transmitting probe to emit an ultrasonic signal. As the ultrasonic signal propagates within the garment care machine, it reflects back to the enclosed ultrasonic transceiver upon encountering obstacles. This echo signal is then received by the receiving probe of the enclosed ultrasonic transceiver. The clothing quantity detection device, by acquiring this echo signal, can further analyze and process the echo signals received by each enclosed ultrasonic transceiver to determine the quantity of clothing currently inside the garment care machine.

[0071] Specifically, such as Figure 4 As shown, in a scenario where clothes 13 are hanging on the hanger 12 corresponding to the clothing detection area of ​​the enclosed ultrasonic transceiver, the ultrasonic signal emitted by the transmitting probe 111 of the enclosed ultrasonic transceiver will be reflected back to the enclosed ultrasonic transceiver when it encounters the clothes 13 during propagation. That is, the receiving probe 112 can receive the echo signal. Similarly, when the ultrasonic signal reaches the wall of the inner liner of the garment care machine, it will also be reflected back.

[0072] like Figure 5 As shown, in a scenario where no clothes are hanging on the clothes hanger 12 in the clothing detection area corresponding to the enclosed ultrasonic transceiver, the ultrasonic signal emitted by the transmitting probe 111 of the enclosed ultrasonic transceiver will be reflected back to the enclosed ultrasonic transceiver after reaching the wall of the inner liner of the clothing care machine, and the receiving probe 112 can receive the echo signal.

[0073] It is understandable that during the propagation of ultrasonic signals within the corresponding area of ​​the garment care machine's inner chamber, the echo signals reflected from different obstacles (such as clothing or the inner chamber wall) will result in the enclosed ultrasonic transceiver receiving echo signals with different signal characteristics at different times. Furthermore, depending on whether there is clothing in the corresponding area, the echo signals returned from the inner chamber wall will also have different signal characteristics due to interference from different obstacles.

[0074] Because enclosed ultrasonic transceivers have a large signal transmission angle and weak signal directivity, when an ultrasonic signal is transmitted to the clothing detection area corresponding to the current enclosed ultrasonic transceiver, the ultrasonic signal is reflected to other clothing detection areas, where it is absorbed or reflected back to the current enclosed ultrasonic transceiver. Clearly, due to the interference of other clothing detection areas on the echo signal, it is difficult to accurately determine the presence of clothing in the corresponding clothing detection area based solely on the signal characteristics of the echo signal received by a single enclosed transceiver. However, according to actual test results, depending on the number of clothes placed in the garment care machine, the number of echo signals of a specific type received by the clothing quantity detection device will remain within a fixed range depending on the number of clothes; that is, the number of echo signals of a specific type corresponds to the number of clothes. Based on this principle, this embodiment of the application obtains and analyzes the echo signals received by each enclosed ultrasonic transceiver for a specific sampling time, thereby determining the number of clothes inside the current garment care machine based on the number of echo signals of a specific type.

[0075] To fully acquire the echo signals required for clothing quantity detection, the clothing quantity detection method provided in this application can also set a sampling duration based on the time period during which the echo signals change with the number of clothes placed inside the clothing care machine. This allows each enclosed ultrasonic transceiver to acquire the echo signals received by the ultrasonic transceiver based on its sampling duration. This ensures that each echo signal accurately reflects the correlation and regularity of the echo signal waveform changes when a corresponding number of clothes are present inside the clothing care machine.

[0076] Furthermore, based on the obtained echo signals with sampling duration, this embodiment of the application counts specified type echo signals from the echo signals, then determines the number of specified type echo signals based on the echo signals received by all enclosed ultrasonic transceivers inside the garment care machine, and superimposes the numbers of each specified type echo signal to determine the sum of the specified type echo signals. Then, based on the determined sum of the specified type echo signals, combined with the correspondence between the number of garments placed inside the garment care machine and the number of specified type echo signals obtained from actual testing, the number of garments inside the garment care machine can be determined by comparison.

[0077] S120. Based on the determined number of echo signals of a specified type, determine a target value, which is used to characterize the sum of the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver.

[0078] After determining the number of echo signals of a specified type acquired by each ultrasonic transceiver, the clothing quantity detection device counts the sum of the number of echo signals of each specified type (i.e., the target value) for subsequent clothing quantity detection.

[0079] The target value can be obtained by directly adding the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver, or by weighted superposition of the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver, or by other algorithms. This application does not specifically limit this.

[0080] Optionally, the specified type of echo signal can be an echo signal in a low-level state. In this case, the embodiments of this application determine the number of echo signals in a low-level state and the number of times the echo signals are in a low-level state according to a preset frequency, and use the echo signals in a low-level state as the specified type of echo signal.

[0081] For example, such as Figure 6 As shown, when counting the number of low-level echo signals, the clothing quantity detection device determines the enclosed ultrasonic transceiver that needs to be detected based on the set timing sequence, and sends eight 40kHz pulse signals to the enclosed ultrasonic transceiver to cause it to send the corresponding ultrasonic signal. Afterwards, the clothing quantity detection device begins to detect the number of low-level echo signals received by the receiving probe within the sampling time.

[0082] Optionally, the clothing detection device performs fuzzy sampling on the receiving pin, with a sampling time set to 50ms (i.e., sampling duration) and a sampling frequency of 20us / time (i.e., preset frequency). The receiving probe starts counting the number of low-level signals in the echo signal from the moment it detects the first low-level signal. Based on the preset frequency, when the program polls for a sampling action, if the level signal of the current receiving pin is low, the counter is incremented by 1, indicating that the low-level count has been incremented by 1. The sampling action ends when the sampling duration reaches 50ms, and the number of low-level signals in the current echo signal is determined. According to the set timing, the number of low-level signals received by each enclosed ultrasonic transceiver is counted, and the total number of low-level signals is accumulated. This total number of low-level signals is used as the target value for subsequent clothing quantity detection.

[0083] S130. Determine the number of clothes inside the garment care machine based on the target value.

[0084] Based on the established target value, the clothing quantity detection device compares the target value with the corresponding threshold information, and then determines the quantity of clothing inside the clothing care machine based on the comparison result.

[0085] Based on actual test results, it was found that when different quantities of clothing were placed inside the garment care machine, the number of echo signals of a specific type corresponded to a relatively fixed range. Based on this pattern, this application embodiment sets corresponding threshold information for the distribution range of the target number of garments placed in the garment care machine, facilitating comparison with the threshold to determine the number of garments inside the garment care machine.

[0086] Taking the low-level echo signal as a specified type of echo signal as an example, the total number of low-level signals (i.e., the target value) is obtained by superimposing the number of echo signals in each low-level state. The total number of low-level signals is then compared with at least one preset low-level threshold. Based on the comparison result of the number of low-level signals, the number of clothes in the cabinet of the garment care machine is determined.

[0087] Optionally, the threshold information includes a first threshold, a second threshold, and a third threshold. Specifically, if the target value is greater than or equal to the first threshold, the quantity of clothing is determined to be zero. If the target value is greater than the second threshold but less than the first threshold, the quantity of clothing is determined to be one; the second threshold is less than the first threshold. If the target value is less than or equal to the third threshold, the quantity of clothing is determined to be N; the third threshold is less than the second threshold. If the target value is less than the second threshold but greater than the third threshold, the quantity of clothing is determined to be greater than 1 and less than N.

[0088] For example, the garment care machine includes three garment detection areas inside its housing. Taking the total number of low-level signals as an example, when detecting the number of garments based on the total number of low-level signals, the total number of low-level signals is compared with the corresponding threshold to determine the number of garments currently inside the garment care machine housing.

[0089] Specifically, if the total number of low-level pulses is greater than or equal to the first threshold, it is determined that there are no clothes in the current garment care machine's cabinet. If the total number of low-level pulses is less than or equal to the third threshold, it is determined that there are 3 clothes in the current garment care machine's cabinet. If the total number of low-level pulses is greater than the second threshold and less than the first threshold, it is determined that there are 1 clothes in the current garment care machine's cabinet. If the total number of low-level pulses is greater than the third threshold and less than the second threshold, it is determined that there are 2 clothes in the current garment care machine's cabinet.

[0090] Furthermore, embodiments of this application can also determine the clothing detection result of the corresponding clothing detection area by identifying the clothing detection area corresponding to the echo signal with the fewest or most low-level times, and combining the low-level times comparison results.

[0091] For example, in a scenario where the number of clothes inside the garment care machine is determined to be 1, the garment detection area corresponding to the echo signal with the fewest low-level occurrences can be identified. In a scenario where the number of clothes inside the garment care machine is determined to be 2, the garment detection area corresponding to the echo signal with the most low-level occurrences can be identified as having no clothes.

[0092] Reference Figure 7 The echo signals received by the enclosed ultrasonic transceivers corresponding to the three clothing detection areas are used to determine the number of low-level events for each of the three echo signals, denoted as S1, S2, and S3. These low-level events correspond to clothing detection area numbers 1, 2, and 3, respectively. The total number of low-level events, Sum, is obtained by summing S1, S2, and S3. Further, based on the set first threshold Nmax, second threshold Nmid, and third threshold Nmin, it is determined which threshold interval Sum belongs to. Specifically, when Sum is greater than or equal to Nmax, the box is considered empty. When Sum is less than or equal to Nmin, the box is considered full of three garments. When Sum is between Nmid and Nmax, the box contains one garment. When Sum is between Nmin and Nmid, the box contains two garments.

[0093] The first threshold Nmax, the second threshold Nmid, and the third threshold Nmin are thresholds determined through repeated verification in actual tests. Optionally, Nmax = 8000, Nmid = 3500, and Nmin = 1000 can be set. In practical applications, the distribution range of the total number of low-level signals when different numbers of clothes are placed inside the garment care machine can be determined based on actual tests, and then the above-mentioned first threshold Nmax, second threshold Nmid, and third threshold Nmin can be set accordingly to accurately determine the number of clothes inside the garment care machine based on the above thresholds.

[0094] Furthermore, in such Figure 3 Based on the clothing quantity detection method shown, such as Figure 8 As shown, when the clothing quantity detection device determines that the clothing quantity is one, it also includes:

[0095] S1301. Determine a first enclosed ultrasonic transceiver, wherein the first enclosed ultrasonic transceiver is the enclosed ultrasonic transceiver that receives the smallest number of echo signals of a specified type among at least two enclosed ultrasonic transceivers.

[0096] S1302. Determine that the clothes inside the garment care machine are located in the garment detection area corresponding to the first enclosed ultrasonic transceiver.

[0097] For example, the garment care machine includes three garment detection areas inside its casing. Taking the total number of low-level signals as an example, when detecting the number of garments based on the total number of low-level signals, the number of low-level signals S1, S2, and S3 of the three enclosed ultrasonic transceivers is compared, and the garment with the fewest low-level signals Sn is determined. The current garment is then located in the garment detection area n corresponding to the garment with the fewest low-level signals. For example, if S1 has the fewest low-level signals, then the current garment is located in detection area 1.

[0098] By identifying the enclosed ultrasonic transceiver that receives the fewest echoes of a specified type when detecting the number of garments, it can be determined that garments are present in the detection area corresponding to that enclosed ultrasonic transceiver. In addition to detecting the number of garments, the placement location of the garments can also be detected, so that the garment care machine can perform garment care on the area where the garments are placed, achieving a better garment care effect.

[0099] Optionally, in such Figure 3 Based on the clothing quantity detection method shown, such as Figure 9 As shown, when N equals three, determining the number of clothes as M also includes:

[0100] S1303. Determine the second enclosed ultrasonic transceiver. The second enclosed ultrasonic transceiver is the enclosed ultrasonic transceiver that receives the most echo signals of the specified type among the three enclosed ultrasonic transceivers.

[0101] S1304. Determine that there are no empty garments in the garment detection area corresponding to the second enclosed ultrasonic transceiver inside the garment care machine.

[0102] For example, the garment care machine includes three garment detection areas inside its casing. Taking the total number of low-level signals as an example, when detecting the number of garments based on the total number of low-level signals, the number of low-level signals S1, S2, and S3 from the three enclosed ultrasonic transceivers is compared, and the garment with the most low-level signals Sm is determined. The current garment is then located in the garment detection area m corresponding to the garment with the most low-level signals. For example, if S2 has the most low-level signals, then there is no garment in the current detection area 2.

[0103] By identifying the enclosed ultrasonic transceiver that receives the most echoes of a specified type when detecting the number of garments, and then determining the empty garments in the detection area corresponding to that enclosed ultrasonic transceiver, the garment placement position can be detected in addition to the quantity of garments. This allows the garment care machine to perform garment care on the areas where the garments are placed, achieving a better garment care effect.

[0104] Based on the above clothing quantity detection process, the number of low-level echo signals can be used to determine the number of clothes inside the garment care machine cabinet. It should be noted that in actual clothing quantity detection scenarios, the corresponding clothing quantity detection process and threshold values ​​can be adaptively set according to the number of hangers (i.e., the number of clothes that can be placed) inside the cabinet. Furthermore, depending on the number of hangers, the number of ultrasonic transceivers will also be set accordingly, and the clothing quantities N and M will adapt accordingly during the clothing quantity detection process. This application embodiment does not impose fixed limitations on the specific number of clothing detection areas, the enclosed ultrasonic transceivers, and the threshold values, which will not be elaborated upon here.

[0105] Optionally, in such Figure 3 Based on the clothing quantity detection method shown, such as Figure 10 As shown, the clothing quantity detection device determines the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver within its respective sampling time, including:

[0106] S1101. Determine the first moment, which is the moment when the enclosed ultrasonic transceiver receives the first echo signal of a specified type.

[0107] S1102. Starting from the first moment, the received echo signal is sampled at a preset frequency within the sampling duration.

[0108] S1103. Determine the number of echo signals of a specified type among the sampled echo signals.

[0109] The clothing quantity detection device, through each enclosed ultrasonic transceiver acquiring a specified type of echo signal within its respective sampling time, determines the moment when the enclosed ultrasonic transceiver receives the first echo signal of the specified type, defining this moment as the first moment. At the first moment, the sampling operation of the specified type of echo signal is triggered. The specified echo signal is sampled according to a preset frequency.

[0110] For example, the received echo signal is sampled every 20µs to determine if it is a specified type. If so, the count of the specified type of echo signal is incremented by 1, and so on, until the sampling duration is reached. The number of specified type echo signals collected at a preset frequency within that sampling duration is output. By setting the corresponding sampling operation trigger time and preset sampling frequency, accurate detection of specified type echo signals can be ensured. Using this method for clothing quantity detection can improve the accuracy of clothing quantity detection and optimize the detection effect.

[0111] In one embodiment, when determining the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver within its respective sampling time, the clothing quantity detection device can also count the number of pulses of each echo signal as the specified type of echo signal; obtain the total number of pulses by superimposing the number of pulses; compare the total number of pulses with at least one preset pulse threshold, and determine the number of clothes in the cabinet of the clothing care machine based on the pulse count comparison result.

[0112] Understandably, since different distributions of pulse counts can reflect different quantities of clothing placed inside the garment care machine, the total number of pulses is calculated by counting the pulses in the echo signal, based on actual echo signal detection requirements. A pre-set pulse threshold is then extracted and compared to determine the quantity of clothing. The pulse threshold is determined by analyzing the distribution range of the total number of pulses corresponding to different quantities of clothing placed inside the garment care machine during actual testing.

[0113] Referring to the above-described process for detecting the number of garments based on the number of low-level pulses, a corresponding comparison process is set based on different pulse thresholds to accurately determine the number of garments inside the garment care machine by comparing the total number of pulses with the pulse threshold. Furthermore, garment quantity detection can also be performed based on other specified types of echo signals (such as high-level pulses or a specified number of pulse levels). This application does not impose fixed limitations on the specific types of echo signals, and will not be elaborated upon here.

[0114] Then, based on the number of clothes inside the garment care machine, the running time of the associated equipment inside the machine can be determined.

[0115] For example, if a garment care machine has three hangers, the number of garments on each hanger is determined using the aforementioned garment quantity detection method, thus determining the total number of garments inside the machine. The total care time and program are adjusted based on the number of garments. For example, in quick garment care, one garment requires 20 minutes, two garments require 25 minutes, and three garments require 30 minutes. More garments require more steam and higher auxiliary heating power; for instance, one garment requires 2 minutes of steam, and each additional garment requires an additional half-minute of steam. In care modes involving spray processes, since the spray process is performed individually for each garment placement area, effectively determining the garment's location prevents ineffective spray operation, thereby achieving more efficient care, optimizing equipment operating efficiency, and improving the user experience.

[0116] In summary, by employing the aforementioned technical methods and statistically analyzing the target values ​​of specified echo signals within each echo signal, and based on the correlation between the number of garments and the number of specified echo signals when different quantities of garments are placed inside the garment care machine, the quantity of specified echo signals within the entire garment care machine is statistically analyzed to detect the number of garments. This approach comprehensively considers the influence of various areas within the garment care machine on the echo signals, avoiding signal interference issues caused by detecting garments through echo time, thereby improving the accuracy of garment quantity detection. Furthermore, during garment care, the operating time of the garment care machine can be adaptively adjusted based on the accurately detected number of garments, ensuring accurate adjustment of the operating time, avoiding excessive energy waste due to prolonged operation, optimizing the energy efficiency management of the garment care machine, and improving the user experience.

[0117] The foregoing mainly describes the solutions provided by the embodiments of this application from a methodological perspective. To achieve the above functions, it includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, based on the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0118] This application embodiment can divide the clothing quantity detection device (which can be the aforementioned clothing care machine or the processor within the clothing care machine) into functional modules based on the above method example. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0119] Based on the above embodiments, Figure 11 This is a schematic diagram of the structure of a clothing quantity detection device provided in an embodiment of this application.

[0120] refer to Figure 11The clothing quantity detection device provided in this embodiment is applied to a clothing care machine including at least two enclosed ultrasonic transceivers. The enclosed ultrasonic transceivers are set in correspondence with the clothing detection area inside the housing of the clothing care machine. The clothing quantity detection device includes: an acquisition module 21, a statistics module 22 and a determination module 23.

[0121] The acquisition module 21 is used to determine the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver within its respective sampling time; the echo signal is the signal after the ultrasonic signal transmitted by the enclosed ultrasonic transceiver is reflected by an obstacle.

[0122] The statistics module 22 is used to determine a target value based on the number of echo signals of a specified type. The target value is used to characterize the sum of the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver.

[0123] The determination module 23 is used to determine the number of clothes inside the garment care machine based on the target value.

[0124] Optionally, module 23 is specifically used for:

[0125] If the target value is greater than or equal to the first threshold, the number of clothes is determined to be zero.

[0126] If the target value is greater than the second threshold and less than the first threshold, the number of clothes is determined to be one; the second threshold is less than the first threshold.

[0127] If the target value is less than or equal to the third threshold, the number of clothes is determined to be N; if the third threshold is less than the second threshold.

[0128] If the target value is less than the second threshold and greater than the third threshold, the number of clothes is determined to be greater than 1 and less than N.

[0129] Optionally, the determining module 23 is further configured to: when the number of clothes is determined to be one, determine the first enclosed ultrasonic transceiver, wherein the first enclosed ultrasonic transceiver is the enclosed ultrasonic transceiver that receives the smallest number of echo signals of a specified type among N enclosed ultrasonic transceivers.

[0130] The garments inside the garment care machine are located in the garment detection area corresponding to the first enclosed ultrasonic transceiver.

[0131] Optionally, the determining module 23 is specifically used to: determine the number of clothes as two when N equals three, the target value is less than the second threshold, and greater than the third threshold.

[0132] Optionally, the determining module 23 is also used to: when the number of clothes is determined to be two,

[0133] The second enclosed ultrasonic transceiver is identified as the enclosed ultrasonic transceiver that receives the most echo signals of a specified type among the three enclosed ultrasonic transceivers.

[0134] It was determined that there were no clothes inside the garment care machine's housing, in the garment detection area corresponding to the second enclosed ultrasonic transceiver.

[0135] Optionally, the acquisition module is specifically used to: determine the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver based on the ultrasonic signal transmission timing, wherein the ultrasonic signal transmission timing is used to control each enclosed ultrasonic transceiver to transmit ultrasonic signals in the corresponding ultrasonic signal transmission timing.

[0136] Optionally, the acquisition module is specifically used for:

[0137] The first moment is defined as the moment when the enclosed ultrasonic transceiver receives the first echo signal of a specified type.

[0138] From the first moment, the received echo signal is sampled at a preset frequency within the sampling duration;

[0139] Determine the number of echo signals of a specified type in the sampled echo signals.

[0140] Optionally, the echo signal of the specified type mentioned above includes an echo signal in a low-level state.

[0141] The above describes a method for detecting the number of echo signals of a specified type acquired by each enclosed ultrasonic transceiver within its respective sampling time. An echo signal is the ultrasonic signal transmitted by the enclosed ultrasonic transceiver after being reflected by an obstacle. Based on the determined number of echo signals of the specified type, a target value is determined, which represents the sum of the number of echo signals of the specified type acquired by each enclosed ultrasonic transceiver. Based on the target value, the number of garments inside the garment care machine is determined. By employing this technique and statistically analyzing the target value of the specified type of echo signal in each echo signal to detect the number of garments, the influence of different areas inside the garment care machine on the echo signal is effectively avoided, mitigating signal interference problems caused by detecting garments through echo time, thereby improving the accuracy of garment quantity detection.

[0142] Furthermore, during garment care, the operating time of the garment care machine can be adaptively adjusted based on the accurately detected number of garments. This ensures that the operating time of the garment care machine is accurately adjusted, avoids excessive energy waste caused by prolonged operation, optimizes the energy efficiency management of the garment care machine, and enhances the user experience.

[0143] The clothing quantity detection device provided in this application embodiment can be used to execute the clothing quantity detection method provided in Embodiment 1 above, and has corresponding functions and beneficial effects.

[0144] Based on the above embodiments, this application provides a garment care machine, referring to... Figure 12 The garment care machine includes: a processor 31, a memory 32, a communication module 33, an input device 34, an output device 35, and a closed ultrasonic transceiver 36.

[0145] The garment care machine may contain one or more processors, and one or more memories. The processors, memories, communication modules, input devices, output devices, and enclosed ultrasonic transceivers of the garment care machine can be connected via a bus or other means.

[0146] The memory 32, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as program instructions / modules corresponding to the clothing quantity detection method in any embodiment of this application (e.g., the acquisition module, statistics module, and determination module in the clothing quantity detection device).

[0147] The memory 32 may primarily include a program storage area and a data storage area. The program storage area may store the operating system and at least one application program required for a given function. The data storage area may store data created based on the use of the device. Furthermore, the memory 32 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 32 may further include memory remotely located relative to the processor, which can be connected to the device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0148] The communication module 33 is used for data transmission, and the enclosed ultrasonic transceiver 36 is used to send ultrasonic signals and receive echo signals of ultrasonic signals.

[0149] The processor 31 executes various functional applications and data processing of the device by running software programs, instructions and modules stored in the memory, thereby realizing the above-mentioned clothing quantity detection method.

[0150] Input device 34 can be used to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the device. Output device 35 may include display devices such as a display screen.

[0151] The garment care machine provided above can be used to perform the garment quantity detection method provided in the above embodiments, and has corresponding functions and beneficial effects.

[0152] Based on the above embodiments, this application also provides a computer-readable storage medium including computer instructions that, when executed on a garment care machine, cause the garment care machine to perform the garment quantity detection method as described in the above embodiments.

[0153] Storage medium – any type of memory device or storage device. The term “storage medium” is intended to include: mounting media, such as CD-ROM, floppy disk, or magnetic tape devices; computer system memory or random access memory, such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc.; non-volatile memory, such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. Storage medium may also include other types of memory or combinations thereof. Furthermore, storage medium may reside in a first computer system in which the program is executed, or it may reside in a different second computer system connected to the first computer system via a network (such as the Internet). The second computer system can provide program instructions to the first computer for execution. The term “storage medium” can include two or more storage media residing in different locations (e.g., in different computer systems connected via a network). Storage medium may store program instructions (e.g., specifically implemented as a computer program) executable by one or more processors.

[0154] This application also provides a computer program product, which includes computer instructions that, when executed on a garment care machine, cause the garment care machine to perform the garment quantity detection method described in the above embodiments.

[0155] The clothing quantity detection device, storage medium, and clothing care machine provided in the above embodiments can execute the clothing quantity detection method provided in any embodiment of this application. For technical details not described in detail in the above embodiments, please refer to the clothing quantity detection method provided in any embodiment of this application.

[0156] The above description is merely a preferred embodiment and the technical principles employed in this application. This application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions that can be made by those skilled in the art will not depart from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of this application, the scope of which is determined by the scope of the claims.

Claims

1. A method for detecting the quantity of clothing, applied to a garment care machine comprising N enclosed ultrasonic transceivers, wherein the enclosed ultrasonic transceivers are correspondingly arranged with respect to the garment detection area inside the casing of the garment care machine, and N is a positive integer greater than or equal to 2, the method for detecting the quantity of clothing comprising: Determine the number of echo signals of a specified type acquired by each of the enclosed ultrasonic transceivers within its respective sampling duration; The echo signal is the ultrasonic signal transmitted by the enclosed ultrasonic transceiver after being reflected by an obstacle. Based on the determined number of echo signals of a specified type, a target value is determined, which is used to characterize the sum of the number of echo signals of the specified type acquired by each of the enclosed ultrasonic transceivers; Based on the target value, the number of clothes inside the garment care machine is determined. Specifically, if the target value is greater than or equal to a first threshold, the number of clothes is determined to be zero; if the target value is greater than a second threshold and less than the first threshold, the number of clothes is determined to be one; the second threshold is less than the first threshold; if the target value is less than or equal to a third threshold, the number of clothes is determined to be N; the third threshold is less than the second threshold; if the target value is less than the second threshold and greater than the third threshold, the number of clothes is determined to be greater than 1 and less than N.

2. The method for detecting the quantity of clothing according to claim 1, characterized in that, After determining that the quantity of clothing is one, the clothing quantity detection method further includes: A first enclosed ultrasonic transceiver is determined, which is the enclosed ultrasonic transceiver among the N enclosed ultrasonic transceivers that receives the fewest echo signals of a specified type. It is determined that the clothing inside the housing of the garment care machine is located in the garment detection area corresponding to the first enclosed ultrasonic transceiver.

3. The method for detecting the quantity of clothing according to claim 1, characterized in that, When N equals three, determining the quantity of clothing to be greater than 1 and less than N includes: The quantity of the clothing is determined to be two.

4. The method for detecting the quantity of clothing according to claim 3, characterized in that, The quantity of clothing is determined to be two, and the clothing quantity detection method further includes: A second enclosed ultrasonic transceiver is identified, which is the enclosed ultrasonic transceiver that receives the most echo signals of a specified type among the three enclosed ultrasonic transceivers. It is determined that there is no clothing inside the housing of the garment care machine, in the garment detection area corresponding to the second enclosed ultrasonic transceiver.

5. The method for detecting the quantity of clothing according to any one of claims 1-4, characterized in that, Determining the number of echo signals of a specified type acquired by each of the enclosed ultrasonic transceivers within its respective sampling duration includes: The number of echo signals of a specified type acquired by each of the enclosed ultrasonic transceivers is determined sequentially based on the ultrasonic signal transmission timing. The ultrasonic signal transmission timing is used to control each of the enclosed ultrasonic transceivers to transmit ultrasonic signals in the corresponding ultrasonic signal transmission timing.

6. The method for detecting the quantity of clothing according to any one of claims 1-4, characterized in that, Determining the number of echo signals of a specified type acquired by each of the enclosed ultrasonic transceivers within its respective sampling duration includes: The first moment is defined as the moment when the enclosed ultrasonic transceiver receives the first echo signal of a specified type. Starting from the first moment, the received echo signal is sampled at a preset frequency within the sampling duration; Determine the number of echo signals of a specified type in the sampled echo signals.

7. The method for detecting the quantity of clothing according to any one of claims 1-4, characterized in that, The specified type of echo signal includes echo signals in a low-level state.

8. A garment quantity detection device, applied to a garment care machine comprising N enclosed ultrasonic transceivers, wherein the enclosed ultrasonic transceivers are correspondingly arranged with respect to garment detection areas within the casing of the garment care machine, and N is a positive integer greater than or equal to 2, the garment quantity detection device comprising: An acquisition module is used to determine the number of echo signals of a specified type acquired by each of the enclosed ultrasonic transceivers within its respective sampling duration; The echo signal is the ultrasonic signal transmitted by the enclosed ultrasonic transceiver after being reflected by an obstacle. The statistics module is used to determine a target value based on the number of echo signals of a specified type, wherein the target value is used to characterize the sum of the number of echo signals of the specified type acquired by each of the enclosed ultrasonic transceivers; The determining module is used to determine the number of clothes inside the garment care machine based on the target value, wherein: if the target value is greater than or equal to a first threshold, the number of clothes is determined to be zero; if the target value is greater than a second threshold and less than the first threshold, the number of clothes is determined to be one; the second threshold is less than the first threshold; if the target value is less than or equal to a third threshold, the number of clothes is determined to be N; the third threshold is less than the second threshold; if the target value is less than the second threshold and greater than the third threshold, the number of clothes is determined to be greater than 1 and less than N.

9. The clothing quantity detection device according to claim 8, characterized in that, When the determining module determines that the quantity of clothing is one, it is further configured to: A first enclosed ultrasonic transceiver is determined, which is the enclosed ultrasonic transceiver among the N enclosed ultrasonic transceivers that receives the fewest echo signals of a specified type. It is determined that the clothing inside the housing of the garment care machine is located in the garment detection area corresponding to the first enclosed ultrasonic transceiver.

10. The clothing quantity detection device according to claim 8, characterized in that, N equals three, the target value is less than the second threshold and greater than the third threshold, and the determining module is specifically used for: The quantity of the clothing is determined to be two.

11. The clothing quantity detection device according to claim 10, characterized in that, When the determining module determines that the quantity of clothing is two, it is further configured to: A second enclosed ultrasonic transceiver is identified, which is the enclosed ultrasonic transceiver that receives the most echo signals of a specified type among the three enclosed ultrasonic transceivers. It is determined that there is no clothing inside the housing of the garment care machine, in the garment detection area corresponding to the second enclosed ultrasonic transceiver.

12. The clothing quantity detection device according to any one of claims 8-11, characterized in that, The acquisition module is specifically used for: The number of echo signals of a specified type acquired by each of the enclosed ultrasonic transceivers is determined sequentially based on the ultrasonic signal transmission timing. The ultrasonic signal transmission timing is used to control each of the enclosed ultrasonic transceivers to transmit ultrasonic signals in the corresponding ultrasonic signal transmission timing.

13. The clothing quantity detection device according to any one of claims 8-11, characterized in that, The acquisition module is specifically used for: The first moment is defined as the moment when the enclosed ultrasonic transceiver receives the first echo signal of a specified type. Starting from the first moment, the received echo signal is sampled at a preset frequency within the sampling duration; Determine the number of echo signals of a specified type in the sampled echo signals.

14. The clothing quantity detection device according to any one of claims 8-11, characterized in that, The specified type of echo signal includes echo signals in a low-level state.

15. A garment care machine, characterized in that, include: N enclosed ultrasonic transceivers, a memory, and a processor, where N is a positive integer greater than or equal to 2, and the enclosed ultrasonic transceivers are connected to the processor. The memory is used to store computer-executed instructions; The processor is used to invoke the computer to execute instructions and control the operation of the enclosed ultrasonic transceiver, so that when the garment care machine is running, it executes the computer to execute instructions to implement the garment quantity detection method as described in any one of claims 1-7.

16. A computer-readable storage medium, characterized in that, Includes computer instructions that, when executed on the garment care machine, cause the garment care machine to perform the garment quantity detection method as described in any one of claims 1-7.

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